yashsingh1/xdaforums huggingface dataset:
[Galaxy S I9000 General] nicoloco:
I did a new test yesterday.

I did a hard reset on my UGJG8 ROM so that I have no app installed ... nothing

I just create my exchange account to have my contact and my mails

I set the sync every hour.

I let the 3G and the wifi

I woke up after 6hours and it lost 29% !! Mainly phone idle (28%) and cell standby (38%)

Honestly I don't know what to do.

It means that it could last 20hours with just syncing every hours !!

Tonight I 'll do the same test without the wifi.
[Galaxy S I9000 General] alovell83:
Get "spare parts" and see if you can find the programs that are causing the most drain (it will mostly be the sync, but there might be others). With it, you'll be able to decide a trade off between battery life/keeping app X.
[Galaxy S I9000 General] alovell83:
Keeping sync off will give anyone boatloads of extra time, it doesn't mean they aren't using their phone, just not in the same way as you are. Yes, the screen is a big drain, and it means anyone getting 2+ days is using their screen for maybe 3 hours a day assuming very little 3G/GPS/Wifi/calls/Gaming. But it's very easy to get 18-24 hours with sync off if you don't live on the phone, to some, living on the phone is one of the main reasons they got an SGS to begin with.
[Galaxy S I9000 General] robnil:
the swedish swedroid tit tests with amoled and concluded that black drains A LOT less than white. I would suggest using very dark backgrounds.
[Galaxy S I9000 General] 666Lucifer:
My guess is that the battery needs time to perform on top level. My phone was empty in 8-10 hours the first days an now (4 weeks later) it can hold up to 2 days.
[Galaxy S I9000 General] Roy Ngan:
Under normal usage, I tweet, buzz, 4q, gmail, exchange, call.

I have to admit this is one of my best battery result so far.
[Galaxy S I9000 General] Wiseguy7:
Just to give you my results on the battery life. I have a new stock JF3 SGS bought a couple of days ago, with quite few apps installed but no type of memory management software i.e. Advenced task killer, etc. The phone has not been rooted.

The phone is taken of charge at about 1:30pm for the past few days. I then use it constantly till about 9:30pm over wifi, browsing the internet. (xda-forums :-)). Gaming for about 30 mins and phone calls for about 20mins. The phone is on stand by for at most 30mins.

With the similar kind of usage with the my iphone 3gs i would get about 5 hours max, so in that sense i'm quite happy with the battery life.

So altogether about 7 hours consistant use, mainly wifi internet browsing, till the phone dies. O and the brightness is set to automatic.
[Galaxy S I9000 General] nicoloco:
please read my post again ... I have 0 apps so I don't see what spare part could give me ??

My sync is already the minimum = every hour

I can't ask less to my phone or if I have to ... I will go back to the Nokia 6310

This time I did the same test without the wifi on.

So only the 3G and the sync every hour

In 7hours it drained 28% of battery
[Galaxy S I9000 General] arr0ww:
1d 5h 39m 4s i'm at 28% battery left.

Display - 37% (3h 20m 28s)

Cell Standby - 20% (12% time without signal)

Voice Calls - 20% (18m 38s)

Phone Idle - 20%

Android System - 3%

Internet - 3% (24m 38s)

Android OS - 2%

Wi-Fi - 2%

Asphalt 5 - 2% (10m 12s)

This is also with K-9 Mail polling all the time for about 12 hours until i deleted it. Should be better next time only using the Gmail app.

Some Motonav/Google Navigation going on too. Wifi/3g on the whole time.

I am generally at 0-1 bar for reception in my room, so the antenna has to work extra hard to keep a connection.
[Galaxy S I9000 General] fakekullu:
1d 0h 6m 25sec since last charge. Battery at 48%

Display - 35% (1h 20m 45s)

Cell Standby - 26% (1d 0h 6m 52s)

Phone Idle - 19% (22h 46m 7s)

Voice calls - 15% (7m 57s)

Android System - 3% (14m 5s)

Email - 2% (6m 23s)

This is with the lowest display setting, BT off, Wifi off, background sync off, HSPA On.
[Galaxy S I9000 General] cosmoboi:
I TOT Super Amoled screen is meant to be power saving and will consume less power? I dun understand why the display is always the highest percentage...
[Galaxy S I9000 General] mib1800:
This is my average after conditioning battery for a week.

Stock firmware: jf4

Uptime: 40 hrs (from full charge) - good signal area 3-4 bars

Usage: 3.5 hrs (3 hrs with screen on - mostly web surf with opera mini), 60mins call - from battery history.

HSDPA on, auto-brightness, wifi/bt/sync/gps all off, email/feeds/weather/stock refresh 30min

Widgets - weather/clock, feeds, stock, battery, calendar and birthday.

Others running background services/apps - aquarium live wp, smspopup, call meter and settings profile.

Use Advanced Task Killer sparingly (frequent used apps are in ignore list)

Overnight for 7 hours with no usage battery dropped about 5-6%

Experience little lag. Most apps open in 1-3sec (I think if you come from Iphone then it is slightly laggy)

Hope this can help those who are having battery problem. I suspect most low battery life are caused by rouge widgets/services. (e.g. I had System Info widget which caused battery drain - I checked the system log file and this widget keeps dying and OS needs to keep reloading it)

For me, battery life is acceptable given sgs huge and bright screen. I am just not convinced with those who got 3-4 days of heavy use with every thing on.
[Galaxy S I9000 General] gravejester:
Following this thread closely I decided to monitor how much battery I lost during the night. I had my SGS connected to the PC before I went to bed, so the battery counters where reset.

I had 47% free battery when I went to bed. It's in flight mode the whole night.

When I woke up this morning it was at 15%!

I checked in Spare Parts (Battery History), and was surprised that it said:

Running (100%)

So it seems the phone has not entered sleep mode during the night.. someone else have experienced the same thing?

How would I go about figuring out what application (if any) is keeping my phone from sleeping at night? It enters sleep mode during day, so could it be the flight mode it self??
[Galaxy S I9000 General] mib1800:
The worse I got is around 15% drain in 6 hours with gps/background data/sync on and wifi off - when not using the phone.

Get the Android system info app and look at cpu clock cycle. For mine the datum is around 160Mhz most of the time with occasional spikes. Check the log too and see whether there are suspicious entries.

If this still doesnt help, maybe you could start from fresh again using the stock firmware. I am using jf4.
[Galaxy S I9000 General] nicoloco:
I will do the test tonight with flight mode first.

No sync, no apps , no phone ...

But that will be on a new rom as I just installed JP3 to have a look

When you say sync on what is your frequency for the mail for instance ?
[Galaxy S I9000 General] robnil:
1 -3 sec for opening an apps cant be right. Are you using a task killer very aggressively? The idea as i can understand from both reading and experience is that often-used apps shall remain in memory. Kill just the no-need-for apps like games and market.

Kill the camera and re-open it and it takes 1 - 3 sec so start, i guess its a quite heavy application. Close it (remain i mem) and open it again and it opens in a split sec.

Just my thoughts
[Galaxy S I9000 General] alferret:
JM2 with lagfix

Up Time 21hrs 55 min

55% remaining

Voice 39%

Cell standby 18%

Display 16%

Phone idle 13%

Android OS 11%

Android system 2%

Phone use has been

8.5hrs mp3 player

30min of calls

12 received 27 sent txt's

20 mins 3G internet

Quite pleased with my battery life after 3 weeks, mind you it was never this good.

Got a spare battery winging its way from Samsung, missed delivery today, gotta wait till monday for that now.
[Galaxy S I9000 General] nicoloco:
New test again last night but this time in 2G instead of 3G

When I switched off the 3G I could see that the reception went from 1 bar to 4-5 bar.

So I expected to have less battery consumption from the fact that it's 2 G and also from the better reception.

I still had the mail synced every hour

Result : 1% on 7hours :D

Now I am at 67% after 11hours20mn

display 70% in 45mn

cell standby : 16%

cardiotrainer : 9% in 48mn

phone idle : 7%

That's a huge difference on cell standby and phone idle

Now it's not pefect as I had a very light usage except the gps soft during 50mn
[Galaxy S I9000 General] monzablue16v:
Plus you are now on 2G instead of 3G. My battery life is shocking, just looking into it and it seems that there is something stopping the phone from sleeping so it uses a lot of battery. Just got to track down what :)

I get around 7 hours from a full charge I use it but not excessively I can't otherwise I can't make and receive calls all day :mad:
[Galaxy S I9000 General] android53:
Battery life should be about 20% per hour at low brightness settings.

And no more than 1% per hour idle.

Anything else is unimportant and can't really be compared as everyone has different usage habits
[Galaxy S I9000 General] gravejester:
This is exactly what I am seeing as well!
[Galaxy S I9000 General] jakers:
Just looked in here because i too think my battery life is poor, but perhaps ive been using mine a bit to much!

Ill keep a closer eye on it over the next few days and compare with u lot.
[Galaxy S I9000 General] fablife:
Just for my sanity, what is the best practice for draining / charging your SGS battery? I've always take the approach of doing 1 full drain every 4 weeks - but from reading the previous pages, it would seem I should be draining it every night for a week.
[Galaxy S I9000 General] fablife:
Okay so after 57 min (with some light usage ie reading a couple emails) im at 98% battery left:

display - 53%

cell standy - 20%

phone idle - 13%

android system - 7%

android core aps - 3%

android OS - 3%

are the above figures good? I'm new to the android OS so just trying to see if what I am seeing is normal.

thanks for any help / opinions you can offer.
[Galaxy S I9000 General] android53:
Just did a test on my battery life

Test settings:

wifi, 40% brightness, apps syncing

HD video on a loop

Result: 7 hours 30 minutes 100-0%

Not bad, its an average of 13-14% battery life per hour of video
[Galaxy S I9000 General] fakekullu:
Ok, after charging my phone for about 6 - 7 cycles (100% to 0%), having brightness at the lowest, autokiller at agressive, HSPA on during the day, 2G on during the night when I sleep, background sync / GPS off, my battery at this moment is at 60% (1d 6+h running)

Hope this helps.
[Galaxy S I9000 General] ashwinds:
3G biggest drainer for me

Where i am, 3G signal is weak and 2G is much stronger.

If i am on 3G, the battery drains rapidly even overnight. I am not sure if its the 3G implementation OR if its the weak signals where i am. Anyway, I switched to 2G and the drain was insignificant. I am going to turn off 3G for now and use it only when i am sure its needed.
[Galaxy S I9000 General] rhys100:
ive only had mine since monday and done 2 cycles, but here is my stats. Good or bad?

img836.imageshack.us

/img836/6350/20100818174436.png

img842.imageshack.us

/img842/4203/20100818174534.png
[Galaxy S I9000 General] dakine:
I'm suddenly getting terrible battery life, only things I can remember installing is the grooveshark widget and executive assistant.

I'll try to investigate this more but did anyone experience the same with one of these widgets?
[Galaxy S I9000 General] banglaman:
Three simple tricks that work for me (heavy user): 1. Brightness to lowest level (not automatic), bright enough still with the super amoled; 2. Once a week, put the phone off completely, then put it on after a few seconds and then full charge it; 3. Never let the battery drain to 0 or whatever %. Charge whenever you can, using the wall plug charger or usb cable plugged into your pc.
[Galaxy S I9000 General] appelflap:
Bought 4 batteries with some chargers from hongkong sellers from ebay for a total of $20 ... Battery life really doesn't bother me no more. A great luxury. Just a tip ;)
[Galaxy S I9000 General] rhys100:
got a link? and are they gonna last as long as the genuine ones?
[Galaxy S I9000 General] appelflap:
That's the beauty of getting 4 (although 2 will do I guess). I don't really care about that also :)

I bought these: http://cgi.ebay.nl/ws/eBayISAPI.dll?ViewItem&item=180537609261

Delivered within a week or so. It comes with a charger for the US, so you have to buy an additional adapter for your region. I bought these for europe: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330422443723

(delivered the same day as the batteries)
[Galaxy S I9000 General] Tachikoma_kun:
Not sure if this has already been mentioned, but I noticed when I charge from USB is says the battery is full at only 70%. If I charge from the mains then it stops at 100%
[Galaxy S I9000 General] Qazz~:
I have experienced isane battery drain twice after using my phone for about 1 month.

when i say insane i mean that i charge my phone till 100%(with the popup) and left it alone overnight, in the morning, it was either dead or with 1% battery remaining. I had just restarted the phone before leaving overnight on both occasions so im not sure what caused the problem... Natrually, i would plug it in for 30 mins before leaving my house and it charge up to 40%, however this 40% drops 1% every 2 mins in my pocket and within two hours of not even using it, my phone is dead. checked what was using my hogging my battery and cell standby was the highest at around 40+%

All i ever did at night was to run rm /data/system/batterystats.bin and/or wipe cache via the recovery menu.

Edit: just occured again last night, when I checked battery usage, luancher pro was at 41% and fancy widget was 27%. maybe a memory leak?

Just to note that my phone was around 43 degrees celcius on all ocassions...
[Galaxy S I9000 General] TheVisitorX:
Same here! If I am on 3G battery drains rapidly and signal is really, really weak like only 1 or 2 / 4. In some cases 0 / 4. Don't know if it's a generally problem or a problem with my phone. If I am on 2G all seems to be fine... Signal 3-4 / 4 and battery stays at 25% in the last few hours.
[Galaxy S I9000 General] Tachikoma_kun:
3G increases radio power substantially to maintain a connection in weak signal areas. If you don't get at least a few bars, it might be worth be worth disabling it until you know you are in a strong 3G area. That could be having a significant effect on your battery life.
[Galaxy S I9000 General] Darkyy:
JM5, HackEclair & CFLagFix

When i flashed JM5, applied the ROM HackEclair 1.0.4, i had acceptable battery life.

But after i applied the CFLagFix 1.80, my battery life is somewhat worse than ever before. I can charge up to 100%, go to lunch for about 1 hour and lose over 25% without doing something (just sent 1 SMS).

That's sad... I had the best battery life with JG5 (or was ist JF5)?
[Galaxy S I9000 General] darksnarfer:
21h 2m 54s since unplugged, 9% battery left

Voice calls: 53% (1h 23m): actually this time I talked a lot

Display: 26% (3h 8m): I watched a whole movie, automatic brightness

GPS: Used during a 30 minutes trip.

Auto-sync was on all the time, never used wifi. My little trick that saves A LOT of battery (and everyone should use) is to turn 3g off every time you're not going to use your phone. It's a shame I have to switch it manually (the android API doesn't allow apps to change this setting) but anyway it's better than nothing.
[Galaxy S I9000 General] The.Opethian:
I'm on JM5. These past couple of days, here's what I've been able to experience:

Day 1:

HSDPA & Sync All Day

10 Minutes Phone Call

Backlight at Lowest

Reached almost 16 hours

Day 2:

EDGE & Sync on all day

Several photos and videos taken

Backlight at AUTO

Reached almost 16 hours

On both days I would use the browser for at least an hour, check in to Foursquare several times, and listen to music for at least an hour as well. I have eBuddy enabled as well.

A friend advised that this are good numbers. Are they? I've always wanted to reach GSMarena's numbers, but maybe I'm using the phone too much. :D
[Galaxy S I9000 General] Intratech:
Doesn't seem to register games and internet use for some reason. :)
[Galaxy S I9000 General] bilboa1:
Hmm ive still 50% battery but..

display: 90% time 1h23

rest: insignificant

I've lowest brightness and its still quite bright

Using JP3
[Galaxy S I9000 General] kuplet:
How do you switch from 3G to 2G?
[Galaxy S I9000 General] ashwinds:
I go to Settings -> Wireless and Networks -> Mobile Networks ->Network Mode and set to GSM only.
[Galaxy S I9000 General] kuplet:
Got it thanks, will try it out if it does make a difference in battery life when using 2G to retrieve emails.

I have been really trying different things since rooting and applying the lag fix. I don't want to undo the lag fix since it really makes a big difference in the performance of my Galaxy S.
[Galaxy S I9000 General] dakine:
Figured out it was the grooveshark widget causing the insane battery drain. Think it prevents the phone from sleeping properly. *edit* i was wrong it was executive assistant that was causing the problem.
[Galaxy S I9000 General] MacGuy2006:
After almost two months with the phone, the battery life still sucks compared to the iPhone 3Gs.

Basically, I get about half, maybe 60% at best of the battery life I used to get with the iPhone.

I like the phone, but I realy hate the fact that I always have to think about my battery when I use this thing.
[Galaxy S I9000 General] Roy Ngan:
Did you apply the general battery saving step for all smartphone, like limit data connection to 2G?
[Galaxy S I9000 General] cosmoboi:
But what's the point when u buy a hsdpa phone but set it @ 2g network?
[Galaxy S I9000 General] HTCDiemond:
Have you tried to charge drain for 5 cycles. My buddy's set had dramatically improved in battery life after he did tat. He had only 6 hours prior and the set seems to heat up..beats??
[Galaxy S I9000 General] kuplet:
After rooting and applying the lagfix 2.3, this is my first full charge and drained cycle. With moderate use and display settings set at low.

Will not apply any other changes and see if several charge & drain cycles will have an effect in the battery life. :confused:
[Galaxy S I9000 General] alovell83:
Part of the problem is that you are expecting similar results out of a 4" device as a 3.5" device, there will always be a trade off between screen size and battery life. That said, sync is the largest battery drain, so if you run sync contemplate getting something like juice defender or ultimate juice.

As usual, this is really uninformative without any figures on display time and how much the total drain was.
[Galaxy S I9000 General] MacGuy2006:
Man, I just want a phone I can use, without dropping it to 2G, or limiting its functionality in any other way.

My problem is, that after almost 2 months, the battery should be running at capacity. Battery life has improved a bit, but it still doesn't really get me through the day if I use the phone as I used to use my iPhone. The iPhone used to last about 32 to 48 hours between charges, and I didn't really have to think about it.

Today, after using the phone fairly heavily, it barely lasted 8 hours, and then when I needed to snap a picture, it refused to do it, because the battery level was too low (which is a really idiotic design, IMO).
[Galaxy S I9000 General] bilboa1:
you might need to replace the battery. how much capacity is reported charged?
[Galaxy S I9000 General] WhatToDo:
rate my battery

left with 20% from full battery

8h 50m since unplugged

display 60%

cell standby 10%

media server 6%

android os 6%

phone idle 5%

android system 5%

advance task killer 2%

android core apps 2%

i on-ed the wifi the whole day running on facebook aps and e-buddy

played games for a while on music for a while

forgot to mention about 200 messages too

so is my battery good? i just been through the recharge cycle for about 4 times should i go through this cycle more or should i just stop?
[Galaxy S I9000 General] BenF1:
Display 67%

Cell Standby 19%

Voice Calls 10%

Phone Idle 5%

12 h 33 m since last unplugged. Less than 10% remaining.

Something is wrong isn't it?
[Galaxy S I9000 General] alovell83:
@All oh why bother, when people just post here without actually reading, but here it goes:

post your display time use. Anyone who wants to use a device in hand for 6 hours plus with the display on has to know the facts of life when it comes to portable devices. Portable devices largest consumer of battery life is the display. That was one of the reasons Apple went with 3.5" to begin with, if they started today they'd still contemplate doing the same because Apple loves battery life numbers.

Perhaps a 3.5" or a 3.2" would be better devices for these type of consumers. 4"+ is ASKING for trouble. Look at Evo, Droid X, Droid 2, Dell Streak... all have this issue. It's a tradeoff I'm happy to make because we have removable batteries, buy another and swap.
[Galaxy S I9000 General] mib1800:
Looking at battery history:-

Non-sleep Uptime: 3hrs 30min

Time with Screen on: 2 hrs 10 min

Phone time: 45mins

Time since last unplugged: 18 hrs

Battery Left: 31%.

This with 3G/background data/auto-sync on, screen at auto-brightness, plenty of widgets.

My battery drops slightly more than 1% per hour without use.

Battery life is still little poor compared to Iphone or WM or Symbian. But then again, these other phones dont have the marvelous screen of sgs.
[Galaxy S I9000 General] Chaku01:
I read a lot of different experiences with battery life, but I think mine is still relevant:

I used to have 2 days battery life with medium usage and 3 days MAX with very little usage. Although not too bad, it still felt a bit underwhelming. But since, I used the battery charge manipulation:

1)charge at max with phone on

2)Take plug out, turn phone off

3)put plug in, wait for max charge

4) use your phone normally )

my readings are as follows battery at 31% charge:

4d 18h since unplugged

cell standby: 36%

phone idle: 27%

voice calls: 26% (48min)

display: 11% (1:54 hours on)

My usage is as follows:

About 2-3 txt/day

about 10min phone calls/day

30-40 min of hi-def video recording

Screen on lowest brightness most of the time

Data connection disabled

Btw: I uninstalled advanced task killer as well, some allege it consumes more energy than it saves.

Test it yourself, doesn't harm the phone or battery at all, and maybe it will help you as well.
[Galaxy S I9000 General] lucasjohny:
every body seem like having problem with this what so call super amoled. The desire is much more better with the old AMOLED. I really have a question, is super AMOLED really save more energy then the old amoled? I already send an email to samsung korea two weeks ago and yet no reply for this question. I think this is my last samsung mobile. I did bring my phone to Samsung services center to check on it twice but after all, the battery drain from the display still the highest. I think we should drop this complain and go for others phone.
[Galaxy S I9000 General] TeamSancheZz:
No offense to anyone using task killers, but I've removed mine after less than a week of owning this phone. The phone has it's own service/task managers built in. Set a shortcut (using launcherpro) to it on your pages and it's the same functionality but without using the resources that the Apps use. Just a thought, you don't really need them, but whatever makes you sleep at night.

I'm considering picking up some chinese/hong kong batteries just for backup. Can get a whole package including car charger / extra usb cord for dirt cheap. I've been charging nightly for the past week, but I use the crap out this phone texting/msn/emails/browsing. Basically replacing my laptop at home.

Battery life is a bummer, but if you play it smart (which sucks that you have to seeing as it's 2010 and we are using the same technology for years!!!!) then you should have no problems. If you find yourself relying on a charge daily... then do yourself a favour and toss out 20-30 bucks on some asian batteries!!!